(19)
(11) EP 1 500 189 A2

(12)

(88) Date of publication A3:
04.11.2004

(43) Date of publication:
26.01.2005 Bulletin 2005/04

(21) Application number: 03723661.9

(22) Date of filing: 27.02.2003
(51) International Patent Classification (IPC)7: H03F 3/45
(86) International application number:
PCT/US2003/005955
(87) International publication number:
WO 2003/075454 (12.09.2003 Gazette 2003/37)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

(30) Priority: 01.03.2002 US 360179 P
26.02.2003 US 373576

(71) Applicant: Broadcom Corporation
Irvine, CA 92619-3616 (US)

(72) Inventors:
  • BLECKER, Eric B.
    San Jose, CA 95134 (US)
  • RANGANATHAN, Sumant
    San Jose, CA 95134 (US)

(74) Representative: Jehle, Volker Armin, Dipl.-Ing. 
PatentanwälteBosch, Graf von Stosch, Jehle,Flüggenstrasse 13
80639 München
80639 München (DE)

   


(54) OPERATIONAL AMPLIFIER WITH INCREASED COMMON MODE INPUT RANGE